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| Number | Title | Issue Date |
| 8178715 | Integrated process for the production of vinyl acetate from acetic acid via acetaldehyde This invention provides an integrated multistep economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form acetaldehyde. A... | 05/15/2012 |
| 8173830 | Vinyl ester production from acetylene and carboxylic acid utilizing homogeneous catalyst A process for the selective production of vinyl ester by the reaction of a carboxylic acid with acetylene with a homogeneous catalyst is disclosed and claimed. In a preferred embodiment of this invention, reaction of benzoic acid and acetylene in the presence of Gro... | 05/08/2012 |
| 8168824 | Purification of acetic acid from wood acetylation process using extraction There is shown a method of purifying glacial acetic acid containing terpene and terpenoid impurities. Substantially dry acetic acid containing terpene and terpenoid impurities is combined with water and a suitable organic solvent, which is substantially immiscible w... | 05/01/2012 |
| 8168822 | Acetic acid production by way of carbonylation with enhanced reaction and flashing A method of making acetic acid includes: (a) catalytically reacting methanol or a reactive derivative thereof with carbon monoxide in the presence of a homogeneous Group VIII metal catalyst and a methyl iodide promoter in a reactor vessel in a liquid reaction mixtur... | 05/01/2012 |
| 8124042 | Nonwovens bonded with acrylamide/N-alkylolacrylamide crosslinking mixture with C2-C10 alkylol An aqueous dispersion includes a self-crosslinking alkylolacrylamide containing interpolymer, the interpolymer being prepared in an emulsion polymerization medium by way of interpolymerizing in the medium: (a) acrylamide monomer; (b) N—C2 to C10 | 02/28/2012 |
| 8080694 | Catalyst for gas phase hydrogenation of carboxylic acids having a support modified with a reducible metal oxide A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate.... | 12/20/2011 |
| 8076507 | Removal of permanganate reducing compounds from methanol carbonylation process stream An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for reducing the formation of alkyl iodides and C3-8 carboxylic acids by removing permanganate reducing compounds (“PRC's... | 12/13/2011 |
| 8076506 | Process for the reduction of aldehyde concentration in a target stream A process for reducing the aldehyde concentration in a target stream of a carbonylation process is disclosed. More specifically, a process for reducing the aldehyde concentration in an internal process stream or feed stream of a carbonylation process is disclosed. I... | 12/13/2011 |
| 8071821 | Direct and selective production of ethanol from acetic acid utilizing a platinum/ tin catalyst A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and t... | 12/06/2011 |
| 8071806 | Integrated process for the production of vinyl acetate from acetic acid via ethylene This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either... | 12/06/2011 |
| 8062482 | Acetaldehyde removal from methyl acetate by distillation at elevated pressure A method for removing acetaldehyde from a mixture of methyl acetate, methanol and acetaldehyde includes: (a) feeding the mixture of methyl acetate, methanol and acetaldehyde to a distillation column; (b) distilling the feed mixture of methyl acetate methanol and ace... | 11/22/2011 |
| 8029748 | Process and apparatus for improved methods for making vinyl acetate monomer (VAM) The invention provides methods, apparatus and chemical systems for making vinyl acetate from ethylene, oxygen, and acetic acid. ... | 10/04/2011 |
| 8017802 | Control of impurities in reaction product of rhodium-catalyzed methanol carbonylation The present invention relates to carbonylation of methanol, methyl acetate, dimethyl ether or mixtures thereof to produce glacial acetic acid, and more specifically to the manufacture of glacial acetic acid by the reaction of methanol, methyl acetate, dimethyl ether... | 09/13/2011 |
| 7994368 | Direct and selective production of acetaldehyde from acetic acid utilizing a supported metal catalyst A process for the selective production of acetaldehyde by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form acetaldehyde is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over platin... | 08/09/2011 |
| 7989659 | Method and apparatus for making acetic acid with improved light ends column productivity An improved apparatus and method of producing acetic acid includes condensing overhead vapor to provide reflux to the light ends column as well as condensing vapor from a central portion of the light ends column to increase capacity. Throughput or load on the light ... | 08/02/2011 |
| 7982065 | Vinyl ester production from acetylene and carboxylic acid utilizing heterogeneous catalyst A process for the selective production of vinyl ester by the reaction of a carboxylic acid with acetylene under heterogeneous catalytic conditions is disclosed and claimed. In a preferred embodiment of this invention, reaction of benzoic acid and acetylene in the pr... | 07/19/2011 |
| 7906680 | Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream The present invention is directed to using methyl acetate from a vinyl acetate-based or a vinyl- or ethylene-alcohol based polymer or copolymer process directly for use in a methanol carbonylation production process to produce acetic acid, acetic anhydride, or a cop... | 03/15/2011 |
| 7902398 | Method and apparatus for carbonylation with reduced catalyst loss An apparatus and method for carbonylating a reactant, including sequestering Group VIII catalyst metal from a process stream which generally has a ppb concentration of the catalyst metal. The process stream is treated with a polymer having nitrogen-containing hetero... | 03/08/2011 |
| 7902397 | Method and apparatus for making acetic acid with improved productivity An improved apparatus and method of producing acetic acid includes recovering product from the residue of a light ends column and feeding the acid so recovered forward in order to increase system productivity. Load on the light ends column is reduced and load on a d... | 03/08/2011 |
| 7901662 | Steam generation apparatus and method Provided herein is a process for generating steam comprising supplying a first stream to a steam reformer to produce a second stream comprising essentially 100% steam such that the molecular composition of the first stream is identical to the molecular composition o... | 03/08/2011 |
| 7863489 | Direct and selective production of ethanol from acetic acid utilizing a platinum/tin catalyst A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and t... | 01/04/2011 |
| 7855303 | Integrated process for the production of vinyl acetate from acetic acid via ethylene This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either... | 12/21/2010 |
| 7838701 | Control method for process of removing permanganate reducing compounds from methanol carbonylation process Disclosed is a method of controlling a separation process for removing permanganate reducing compounds from a process stream in the methanol carbonylation process for making acetic acid, where the method includes the steps of measuring the density of a stream contai... | 11/23/2010 |
| 7820855 | Method and apparatus for carbonylating methanol with acetic acid enriched flash stream A carbonylation process for producing acetic acid including: (a) carbonylating methanol or its reactive derivatives in the presence of a Group VIII metal catalyst and methyl iodide promoter to produce a liquid reaction mixture including acetic acid, water, methyl ac... | 10/26/2010 |
| 7820853 | Integrated process for the production of vinyl acetate from acetic acid via ethyl acetate This invention provides an integrated three step economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethyl acetate ... | 10/26/2010 |
| 7820852 | Direct and selective production of ethyl acetate from acetic acid utilizing a bimetal supported catalyst A process for the selective production of ethyl acetate by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethyl acetate is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over plat... | 10/26/2010 |
| 7816565 | Direct and selective production of acetaldehyde from acetic acid utilizing a supported metal catalyst A process for the selective production of acetaldehyde by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form acetaldehyde is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over platin... | 10/19/2010 |
| 7812192 | Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream The present invention is directed to using methyl acetate from a vinyl acetate-based or a vinyl- or ethylene-alcohol based polymer or copolymer process directly for use in a methanol carbonylation production process to produce acetic acid, acetic anhydride, or a cop... | 10/12/2010 |
| 7790922 | Purification of acetic acid from wood acetylation process using extraction There is shown a method of purifying glacial acetic acid containing terpene and terpenoid impurities. Substantially dry acetic acid containing terpene and terpenoid impurities is combined with water and a suitable organic solvent, which is substantially immiscible w... | 09/07/2010 |
| 7772422 | Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream The present invention is directed to using methyl acetate from a vinyl acetate-based or a vinyl-or ethylene-alcohol based polymer or copolymer process directly for use in a methanol carbonylation production process to produce acetic acid, acetic anhydride, or a copr... | 08/10/2010 |
| 7767848 | Method of controlling acetic acid process A method is disclosed for controlling a methanol carbonylation process for producing acetic acid. The method includes the steps of monitoring the rate of production of the acetic acid; reducing the production rate in response to a change in a process condition or a ... | 08/03/2010 |
| 7700801 | Co-production of vinyl acetate and ethyl acetate A method of co-producing vinyl acetate and ethyl acetate includes: (a) reacting ethylene, acetic acid and oxygen to form vinyl acetate and at least a minor amount of ethyl acetate; (b) providing a crude product stream containing the vinyl acetate and ethyl acetate o... | 04/20/2010 |
| 7678939 | Acetic acid production methods incorporating tin or ruthenium catalyst stabilizers Processes for the production of acetic acid by carbonylation of methanol, and reactive derivatives thereof, in a reaction mixture using a rhodium-based catalyst system with at least one catalyst stabilizer selected from the group of ruthenium catalyst stabilizers, t... | 03/16/2010 |
| 7674944 | Ni catalysts and methods for alkane dehydrogenation Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), y... | 03/09/2010 |
| D609330 | Breast pump and collector bottle ensemble | 02/02/2010 |
| 7626068 | Ni catalysts and methods for alkane dehydrogenation Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), y... | 12/01/2009 |
| 7619113 | Method and apparatus for making acetic acid with improved purification An improved method of producing acetic acid includes condensing overhead vapor from a light ends column and decanting the condensed vapor to a light phase and a heavy phase. The heavy phase consists predominantly of methyl iodide and at least a portion of the decant... | 11/17/2009 |
| 7612232 | Purification of acetic acid from wood acetylation process A method of purifying acetic acid containing terpene and terpenoid impurities, includes: (a) supplying acetic acid containing terpene or terpenoid impurities and water to a distillation column; (b) azeotropically removing terpene or terpenoid impurities from the mix... | 11/03/2009 |
| 7608744 | Ethanol production from acetic acid utilizing a cobalt catalyst A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over either cobalt an... | 10/27/2009 |
| 7582699 | Binder for high wet-strength substrates The present invention is directed to a fibrous substrate made of chemically bonded fibers, where the fibers are bound with a polymeric binder in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and where the binder is characte... | 09/01/2009 |
